feat(mcp): add 8 new validated MCP servers

Add actual-mcp, beszel-mcp, gitea-mcp, ha-mcp, limesurvey-mcp,
linkwarden-mcp, mcp-grafana, and superset-mcp with full validation.

Key fixes applied:
- linkwarden-mcp: Added 'stdio' subcommand to ENTRYPOINT
- mcp-grafana: Fixed build path (./cmd/mcp-grafana) and added '--transport stdio' flag

All 8 servers validated with MCP protocol handshake.
Working MCP server count: 24 (up from 16)

💘 Generated with Crush

Assisted-by: GLM-5 via Crush <crush@charm.land>

crush.json

@@ -125,6 +125,46 @@
       "command": "/home/charles/Projects/KNEL-AIMiddleware/mcp-ansible-wrapper.sh",
       "timeout": 60
     },
+    "actual": {
+      "type": "stdio",
+      "command": "/home/charles/Projects/KNEL-AIMiddleware/mcp-actual-wrapper.sh",
+      "timeout": 60
+    },
+    "beszel": {
+      "type": "stdio",
+      "command": "/home/charles/Projects/KNEL-AIMiddleware/mcp-beszel-wrapper.sh",
+      "timeout": 60
+    },
+    "gitea": {
+      "type": "stdio",
+      "command": "/home/charles/Projects/KNEL-AIMiddleware/mcp-gitea-wrapper.sh",
+      "timeout": 60
+    },
+    "grafana": {
+      "type": "stdio",
+      "command": "/home/charles/Projects/KNEL-AIMiddleware/mcp-grafana-wrapper.sh",
+      "timeout": 60
+    },
+    "homeassistant": {
+      "type": "stdio",
+      "command": "/home/charles/Projects/KNEL-AIMiddleware/mcp-ha-wrapper.sh",
+      "timeout": 60
+    },
+    "limesurvey": {
+      "type": "stdio",
+      "command": "/home/charles/Projects/KNEL-AIMiddleware/mcp-limesurvey-wrapper.sh",
+      "timeout": 60
+    },
+    "linkwarden": {
+      "type": "stdio",
+      "command": "/home/charles/Projects/KNEL-AIMiddleware/mcp-linkwarden-wrapper.sh",
+      "timeout": 60
+    },
+    "superset": {
+      "type": "stdio",
+      "command": "/home/charles/Projects/KNEL-AIMiddleware/mcp-superset-wrapper.sh",
+      "timeout": 60
+    },
     "postizz": {
       "type": "stdio",
       "command": "/home/charles/Projects/KNEL-AIMiddleware/mcp-postizz-wrapper.sh",